Debt (Narrative) (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility amount	$ 8,100,000
Line of credit availability	175,000,000.0
Term Loan A [Member]
Debt Instrument [Line Items]
Line of credit availability	500,000,000.0
Principal debt outstanding	456,200,000	$ 468,700,000
Bi-lateral Facility [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility amount	8,100,000
Line of credit availability	25,000,000.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit availability	500,000,000.0
Amount outstanding	215,000,000.0	$ 165,000,000.0
Revolving Credit Facility [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Line of credit availability	150,000,000.0
Senior Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility amount	$ 1,000,000,000.0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Details

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